Multiple reverse lookups on WS 2003 DNS

Chris Buxton cbuxton at
Fri Jun 12 18:42:58 UTC 2009

I don't see where you're using BIND. This is a BIND forum, not a forum  
for MS DNS.

It sounds like, if you are actually using MS DNS, the client machines  
are having to send their own updates. Since the new user of the IP  
doesn't own the old PTR record, he doesn't have permission to delete  
it. The solution is to have the DHCP server manage the PTR records via  
dynamic update, rather than the end users.

If you are using BIND, it sounds like a defect in whatever software is  
sending the dynamic update (either the Cisco DHCP server or the client  
machine's IP stack).

Chris Buxton
Professional Services
Men & Mice

On Jun 11, 2009, at 6:33 PM, Vineesh Viswanath Iyer wrote:

> Hello Everybody .
> We have moved the DHCP Server from Microsoft to Cisco , Things are  
> working fine other than the DNS reverse lookup's .
> When a machine gets a new IP address , its registering a new reverse  
> lookup in the DNS , good , but the issue here is that the old record  
> is not deleted .
> so for a name we have got multiple IP associations .
> Thanks in advance .
> Vinu
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> bind-users mailing list
> bind-users at

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